I know it's a bit off topic but I cringe when I hear people talk about adjusting valves on engines with hydraulic cams with the engine running. I know lots of guys do it, I just don't know why. The mess alone plus the fact that it's not all that accurate is reason enough for me.

Ok, I did buy restrictors and put them in but then took them back out and plugged the holes. I'm running a 3 stage dry sump system and the Dart SHP block is designed for priority main oiling so flow to the bearings should'nt be a problem. I am running Lunati Solid Rollers (.300 taller), Comp Cams 3/8" Tapered Chrome Moly Pushrods w/T&D Shaft Rockers on AFR 227cc Aluminum Heads. Here are a few pictures of the motor, almost done. Thanks for all your input.

Ok, I did buy restrictors and put them in but then took them back out and plugged the holes. I'm running a 3 stage dry sump system and the Dart SHP block is designed for priority main oiling so flow to the bearings should'nt be a problem. I am running Lunati Solid Rollers (.300 taller), Comp Cams 3/8" Tapered Chrome Moly Pushrods w/T&D Shaft Rockers on AFR 227cc Aluminum Heads. Here are a few pictures of the motor, almost done. Thanks for all your input.

Quote:
Originally Posted by MouseFink
Never use forged "racing" pistons that use 1/16" top and second rings in engine that is driven daily. . The 1/16" rings are low tension rings to be used on low silicon forged pistons in high RPM racing engines. The 1/16" rings have poor oil control at low RPM. Always use forged pistons that use 5/64" top and second rings. Those type pistons set up at .002" - .0035" clearance and utilize oil return slots instead of return holes in the oil ring lands.

If one insist on using 1/16" low tension rings, a block plate should be used when honing the bores. The 1/16" low tension rings require perfectly round cylinder bores and the ends should not be file fitted. File fitting makes rings progressively egg shaped. Select the 1/16" low tension rings using a bore light and use only the rings from several sets that fit the bores as is. In drag racing engines using thin low tension rings, block filler such as "Hard Blok" should be considered.

Automakers today are using low tension metric rings in new cars to improve gas milage.

CNC Blocks....ummmmmm, some of us need those egg shaped rings to fit our egg shaped cylinders. LOL
Been file fitting rings for years without issue....well, except when I break one while filing it because I'm just a wildman.

[B]going to say this straight on.anytime you have shop that does this for a living willing to share the knowledge,you should be grateful,stop,listen and learn!!!.if it becomes too much of a pita,they just move on.[B]

going to say this straight on.anytime you have shop that does this for a living willing to share the knowledge,you should be grateful,stop,listen and learn!!!.if it becomes too much of a pita,they just move on.

That's why I took them back out. I asked the question and followed the suggestions from the pros.

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